Moved inclussion of lincan_config.h to can_sysdep.h
[lincan.git] / lincan / include / can_sysdep.h
1 #ifndef _CAN_SYSDEP_H
2 #define _CAN_SYSDEP_H
3
4 #ifdef CAN_WITH_RTL
5 #include <rtl.h>
6 #include <rtl_sync.h>
7 #include <rtl_core.h>
8 #include <rtl_mutex.h>
9 #include <rtl_sched.h>
10 #endif /*CAN_WITH_RTL*/
11
12 /*#define __NO_VERSION__*/
13 /*#include <linux/module.h>*/
14
15 #include <linux/version.h>
16 #include <linux/wait.h>
17 #include <linux/list.h>
18 #include <linux/fs.h>
19 #include <linux/ioport.h>
20 #include <linux/delay.h>
21 #include <linux/sched.h>
22 #include <linux/interrupt.h>
23 #include <asm/errno.h>
24
25 #include <asm/io.h>
26 #include <asm/atomic.h>
27 #include <asm/irq.h>
28 #include <asm/uaccess.h>
29
30 #include "lincan_config.h"
31
32 /*optional features*/
33 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0))
34 #define CAN_ENABLE_KERN_FASYNC
35 #ifdef CONFIG_PCI
36 #define CAN_ENABLE_PCI_SUPPORT
37 #endif
38 #ifdef CONFIG_OC_LINCANVME
39 #define CAN_ENABLE_VME_SUPPORT
40 #endif
41 #endif
42
43 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,4,0))
44 #include <linux/malloc.h>
45 #else
46 #include <linux/slab.h>
47 #endif
48
49 #ifdef CAN_ENABLE_PCI_SUPPORT
50 #include "linux/pci.h"
51 #endif /*CAN_ENABLE_PCI_SUPPORT*/
52
53 /* Next is not sctrictly correct, because of 2.3.0, 2.3.1, 2.3.2
54    kernels need next definitions  too */
55 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,2,19)) /* may need correction */
56   #define wait_queue_head_t struct wait_queue *
57   #define wait_queue_t      struct wait_queue
58   #define init_waitqueue_head(queue_head) (*queue_head=NULL)
59   #define init_waitqueue_entry(qentry,qtask) \
60                         (qentry->next=NULL,qentry->task=qtask)
61   #define DECLARE_WAIT_QUEUE_HEAD(name) \
62         struct wait_queue * name=NULL
63   #define DECLARE_WAITQUEUE(wait, current) \
64         struct wait_queue wait = { current, NULL }
65   #define init_MUTEX(sem) (*sem=MUTEX)
66   #define DECLARE_MUTEX(name) struct semaphore name=MUTEX
67 #endif /* 2.2.19 */
68
69 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,4,0)) && !defined(DECLARE_TASKLET)
70   #define tasklet_struct tq_struct
71   #define DECLARE_TASKLET(_name, _func, _data) \
72                 struct tq_struct _name = { sync: 0, routine: _func, data: (void*)_data }
73
74   /* void tasklet_init(struct tasklet_struct *t, void (*func)(unsigned long), unsigned long data); */
75   #define tasklet_init(_tasklet, _func, _data) \
76     do{ \
77        /* (_tasklet)->next=NULL; */ \
78        /* Above not needed for 2.2.x and buggy for 2.4.x */ \
79        (_tasklet)->sync=0; \
80        (_tasklet)->routine=_func; \
81        (_tasklet)->data=(void*)_data; \
82     }while(0)
83
84   /* void tasklet_schedule(struct tasklet_struct *t) */
85   #define tasklet_schedule(_tasklet) \
86     do{ \
87        queue_task(_tasklet,&tq_immediate); \
88        mark_bh(IMMEDIATE_BH); \
89     }while(0)
90
91   /* void tasklet_kill(struct tasklet_struct *t); */
92   #define tasklet_kill(_tasklet) \
93                 synchronize_irq()
94
95 #endif /* 2.4.0 */
96
97
98 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,7)) || (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
99
100 #define MINOR_NR \
101         (MINOR(file->f_dentry->d_inode->i_rdev))
102
103 #else /* Linux kernel < 2.5.7 or >= 2.6.0 */
104
105 #define MINOR_NR \
106         (minor(file->f_dentry->d_inode->i_rdev))
107
108 #endif /* Linux kernel < 2.5.7 or >= 2.6.0 */
109
110 #ifndef CAN_WITH_RTL
111 #if ((LINUX_VERSION_CODE < KERNEL_VERSION(2,5,68)) && !defined(IRQ_RETVAL))
112   typedef void can_irqreturn_t;
113   #define CAN_IRQ_NONE
114   #define CAN_IRQ_HANDLED
115   #define CAN_IRQ_RETVAL(x)
116 #else /* <=2.5.67 */
117   typedef irqreturn_t can_irqreturn_t;
118   #define CAN_IRQ_NONE    IRQ_NONE
119   #define CAN_IRQ_HANDLED IRQ_HANDLED
120   #define CAN_IRQ_RETVAL  IRQ_RETVAL
121 #endif /* <=2.5.67 */
122 #else /*CAN_WITH_RTL*/
123   typedef int can_irqreturn_t;
124   #define CAN_IRQ_NONE        0
125   #define CAN_IRQ_HANDLED     1
126   #define CAN_IRQ_RETVAL(x)   ((x) != 0)
127 #endif /*CAN_WITH_RTL*/
128
129 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,33))
130    #define can_synchronize_irq(irqnum) synchronize_irq()
131 #else /* >=2.5.33 */
132    #define can_synchronize_irq synchronize_irq
133 #endif
134
135 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,4,0))
136   #define del_timer_sync del_timer
137 #endif /* <2.4.0 */
138
139 #ifndef CAN_WITH_RTL
140 /* Standard LINUX kernel */
141
142 #define can_spinlock_t             spinlock_t
143 #define can_spin_irqflags_t        unsigned long
144 #define can_spin_lock              spin_lock
145 #define can_spin_unlock            spin_unlock
146 #define can_spin_lock_irqsave      spin_lock_irqsave
147 #define can_spin_unlock_irqrestore spin_unlock_irqrestore
148 #define can_spin_lock_init         spin_lock_init
149
150 #if defined(CONFIG_PREEMPT) || (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
151 #define can_preempt_disable        preempt_disable
152 #define can_preempt_enable         preempt_enable
153 #else /*CONFIG_PREEMPT*/
154 #define can_preempt_disable()      do { } while (0)
155 #define can_preempt_enable()       do { } while (0)
156 #endif /*CONFIG_PREEMPT*/
157
158 #define can_enable_irq             enable_irq
159 #define can_disable_irq            disable_irq
160
161 #define can_printk                 printk
162
163 #else /*CAN_WITH_RTL*/
164
165 #define can_spinlock_t             rtl_spinlock_t
166 #define can_spin_irqflags_t        rtl_irqstate_t
167 #define can_spin_lock              rtl_spin_lock
168 #define can_spin_unlock            rtl_spin_unlock
169 #define can_spin_lock_irqsave      rtl_spin_lock_irqsave
170 #define can_spin_unlock_irqrestore rtl_spin_unlock_irqrestore
171 #define can_spin_lock_init         rtl_spin_lock_init
172
173 #define can_preempt_disable()      do { } while (0)
174 #define can_preempt_enable()       do { } while (0)
175
176 #define can_enable_irq             rtl_hard_enable_irq
177 #define can_disable_irq            rtl_hard_disable_irq
178
179 #define can_printk                 rtl_printf
180
181 /*
182  * terrible hack to test rtl_file private_data concept, ugh !!!
183  * this would result in crash on architectures,  where 
184  * sizeof(int) < sizeof(void *)
185  */
186 #define can_set_rtl_file_private_data(fptr, p) do{ fptr->f_minor=(long)(p); } while(0)
187 #define can_get_rtl_file_private_data(fptr) ((void*)((fptr)->f_minor))
188
189 extern can_spinlock_t can_irq_manipulation_lock;
190
191 #endif /*CAN_WITH_RTL*/
192
193 #endif /*_CAN_SYSDEP_H*/